[Guillain-Barré syndrome following type 4 dengue in Polynesia].

Dengue fever is the most frequent arbrovirus infection in the world. It is endemic in French Polynesia where epidemic outbreaks sometimes occur. The most common clinical presentation is that of a flu-like illness but hemorrhagic dengue fever can be observed in severe cases. Association of dengue fever with Guillain-Barré syndrome (GBS) has been reported in a few cases. The relationship between these two pathologies is unclear but autoimmune mechanisms are probably involved.